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웹교통량을 이용한 한국과 일본 e-비즈니스 기업의 가치결정 요인 연구
이제경,염동호 한국동북아경제학회 2004 동북아경제연구 Vol.16 No.3
The main purpose of this study is to confirm the possibility of web-traffic that affects e-business firms in Korea and Japan as the value drivers and to analyze effectiveness of web-traffic on the value of e-business firms as time goes by. For this purpose, the web-traffic was used as a major factor to the value of e-business firms, and it was investigated for the influences on the value of firms. Also, for analyzing the time effects, the financial information and the web-traffic of e-business firms registered at KOSDAQ (Korea) and JASDAQ (Japan) for the past 4 years (2000~2003) were used to evaluate and to analyze those factors to affect the value of e-business firms annually. Using the meaning of multiple regression methodology based on the financial information and the web-traffic from 25 Korean e-business firms and 24 Japanese e-business firms, the results are as follows: Differ from the non e-business firms, the regression analysis about the value of e-business firms is more progressed with adding web-traffic as a factor than considering financial information only. Besides, 4 factor of web-traffic (number of unique visitor, number visit, page view and site duration visit) was verified as a value diver to explain intrinsic value of e-business firms. Some distinguished facts were studied particularly in the case of Japan that the value of e-business firms was more increased with the site visit duration than with number of visitors. On the other hand, the efficient result of the affection from web-traffic with time change for e-business firms was not obtained on annual regression analysis (2000-2004).
이제경,김정기,안정인,임지연,차경애 한국멀티미디어학회 2023 멀티미디어학회논문지 Vol.26 No.8
In this paper, we propose a method to reduce the amount of manual work in webtoon creation and utilize creative contents derived from AI learning through deep learning-based technology that generates background images of various styles. To achieve this goal, we train CartoonGAN and AnimeGAN models that are specialized in creating images in the style of webtoons and animations, and create background images that can be used for webtoons. Recently, various Generative Adversarial Network (GAN) models have been actively used to create digital content, but cartoon-style images should be created with simplified textures and sharp outlines. In addition, when converting a real image into a cartoon style, it is necessary to create a simple and abstract image while maintaining the content expressed by the image. We build training data suitable for the production of these webtoon-style images, and analyze whether the images generated by the two GAN models can be used for webtoon production, and seek ways to utilize generative AI.
만성 신부전 환자에서 동정맥투술 후 개존율에 영향을 미치는 인자들에 대한 임상적 고찰
이제경,이흥범,고현우,이병철,박성광,강성귀,이승렬 의과학연구소 1996 全北醫大論文集 Vol.20 No.1
To obtain vascular access for hemodialysis, and to keep these vessels patent for a long time, is essential for patients of chronic renal failure. Since 1966 Brescia and Cimino introduced the use of subcutaneous arteriovenous(A-V) fistula as the vascular access for long time hemodialysis, internal A-V fistula has been used widely today. The factors influencing the early patency of internal A-V fistula in chronic renal failure were examined in several centers, but the studies for erythropoietin(EPO) influencing the function of A-V fistula were rarely studied. Therefore authors were reviewed the 143 cases of A-V fistula created at Chonbuk National University Hospitoal from june, 1988 to June, 1994. Authros were examined whether the following factors including age & sex, underlying disease, fistula sites & types, initial postoperative A-V fistula state, first time of puncture, blood pressure, diabetes mellitus, and EPO had influence on the early & late patency of A-V fistula. The following results were obtained: 1)The factors related to the early failure were diabets mellitus and poor condition of initial postoperative fistula state. 2)The factor influencing late patency was poor condition of initial postoperative state. 3)The EPO therapy increases hematocrit level but does not seem to affect fistula function. 4)Anerage 1-, 2-, 3-year patency rates of A-V fistula in totla population were 86.0%, 81.8%, 76.2%, respectively, and the mean eriod of overall patency was 34.4 months. 5)The complications of A-V fistula were thrombosis, local ingection, vessel stenosis or others. 6)The main cause of thrombosis was poor technical care after repeated venopuncture for hemodialysis. 7)Age & sex, fistula sites & types, first time of puncture, blood pressure, EPO were not correlated with A-V fistula patency. A-V fistula patency rate was significantly lower in diabetic patients and poor comdition of initial postoperative A-V fistula state. Therefore we should manage A-V fistula more carefully to prevent thrombosis in end stage renal disease patients with bemodialysis, especiallydiabetics, and recmooand the adequate EPO therpay in selective cases. In futrure, it may be necessary to determine the major factors for the patency of A-V fistula.
이제경,이용철,이양근 의과학연구소 1995 全北醫大論文集 Vol.19 No.1
Diffuse Esophageal Spasm(DES) is an uncommon motility disorder that is primarily a diagnosis made on the basis of manometric findings in the appropriate clinical setting. Chest paing and dysphagia are the major symptoms in patients with DES. The symptoms vary from mild to severe and typically intermittent authors experienced a rare case of diffuse esophageal spasm associated with lung cancer. A 66 year-old male patient was admitted to department of internal medicine in Chonbuk National University Hospital who has complaining of swaalowing difficulty and chest pain for 2 months. Bronchoscopuic biopsy revealed squamous cell carcinoma of the lung. In esophageal monametric study, frequent simultaneous contraction and high amplitude contraction with long duration of the esophageal body but relaxation of the lower esophageal sphincter during swaalowing were shown. Authors present the clinical and manometric features of DES associated with lung cancer with an extensive review of literatures.